<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<table border="1">
    <caption>商品列表</caption>
    <tr>
        <th>商品标题</th>
        <th>商品价格</th>
        <th>商品销量</th>
    </tr>
</table>
<script>
  //实例化对象
let p1={};
  //动态添加属性和方法
  p1.name="张三";
  p1.age=18;
  p1.run=function (){
      console.log(this.name+":"+this.age);
  }
  //调用对象方法
  p1.run();
  //实例化自带属性和方法的对象
  let p2={
      name:"李四",
      age:20,
      run:function (){
          console.log(this.name+":"+this.age);
      }
  }
  //调用方法
  p2.run();

  //将多个信息封装到一个对象中
  let arr=[{title:"小米手机",price:5000,saleCount:200},
      {title:"李宁篮球鞋",price:500,saleCount:100},
      {title:"华为电视",price:4000,saleCount:20},
      {title:"苹果14pro max",price:10000,saleCount:2}];
  let table=document.querySelector("table");
  //遍历数组
  for(let product of arr){
      let tr=document.createElement("tr");
      let titleTd = document.createElement("td");
      let priceTd = document.createElement("td");
      let saleCountTd = document.createElement("td");
      titleTd.innerText=product.title;
      priceTd.innerText = product.price;
      saleCountTd.innerText = product.saleCount;
      tr.append(titleTd,priceTd,saleCountTd);
      //把tr装进table
      table.append(tr);
  }
</script>
</body>
</html>